math

posted by .

show that the equation x^2+2xy+y^2+x+y-2=0 rebresent two paralil straight lines and find the equation of those two lines

  • math -

    x^2+2xy+y^2+x+y-2=(x+y+2)(x+y-1)

    y=-x-2
    y=-x+1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Calculus

    The line that is normal to the curve x^2=2xy-3y^2=0 at(1,1) intersects the curve at what other point?
  2. Calculus

    dy/dx= (y^2 -1)/x 1. Give the general equation of the curves that satisfy this equation. 2. Show that the straight lines y=1 and y=-1 are also solutions. 3. Do any of the curves you found in 1) intersect y=1?
  3. Math 2

    You should make two selections from the list below. Which two of the four equations represents parallel lines?
  4. Math

    Solve 2x-y+3z=8 x-6y-z=0 -6x+3y-9z=24 Did you notice that your third equation has the same normal as the third one?
  5. Vector

    The two lines with the equation r=(1,2,-44)+ t(k+1, 3k+1,k-3) and x=2-3s, y=1-10s, z=3-5s, are given. a) determine the vaulue for K when the lines are paralel b) determine the value of K when the lines are perpendictular
  6. math

    show that the equation x^2+2xy+y^2+x+y-2=0 rebresent two paralil lines and find the equations of thos lines
  7. Geometry

    If two non parallel lines are perpendicular to two other straight lines , each to each . Show that the acute angle between the first pair of lines is equal to the acute angle between the second pair of lines.
  8. Calculus

    The graph of the equation x2 − xy + y2 = 9 is an ellipse. Find the lines tangent to this curve at the two points where it intersects the x-axis. Show that these lines are parallel.
  9. Math

    In this problem we consider drawing some straight lines which form a nice pattern. Consider joining the point (0.1,0) to the point (0,0.9) by a line segment; then joining (0.2,0) to (0,0.8) by a line segment; and so on. In general, …
  10. math

    let line A be the graph of the equation x+7y = 3 and let line B be given by the equation 2x + 15y = 6. Use an augmented matrix to determine if the two lines meet and if so at which point. Graph the two lines and indicate their meeting …

More Similar Questions